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After excavating the shaft, the shearing stresses along the walls of the shaft will be equal to ___________

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+1 vote
in Geotechnical Engineering II by (93.7k points)
After excavating the shaft, the shearing stresses along the walls of the shaft will be equal to ___________

(a) Zero

(b) Normal stress

(c) Circumferential stress

(d) All of the mentioned

The question was asked in class test.

This is a very interesting question from Stress Distribution in the Vicinity of Shafts topic in chapter Shafts, Tunnels and Conduits of Geotechnical Engineering II

1 Answer

0 votes
by (243k points)
Right choice is (a) Zero

Easiest explanation: After the shaft has been excavated the shearing stresses along the walls of the shaft are equal to zero and the radial normal stresses are also equal to zero.

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